Naho's a quiet, kindhearted girl with a crush on her classmate Kakeru. Everything changes when she gets a letter from her future self with a devastating message: Kakeru is going to die, and she's the only one who can prevent it. The catch is that Naho has to actually do something about it, which means stepping way outside her comfort zone. She's naturally reserved and hesitant, so pushing herself to get close to Kakeru and watch out for him becomes this constant internal battle. It's one thing to read a letter warning you about the future—it's another to actually change who you are to save someone.
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